ok so i did a no no and bought something without researching it. it was a giant cup coral and i got it real cheap when i went to a store that was a good 2 1/2 hour drive away. i have since learned that they can eat fish. the one i bought is about 10 inches in diameter. my question is has anyone had them? how prone to fish eating are they? my woman really likes it and i dont want to get rid of it unless its a must. i have read that if you feen brine shrimp that they will leave stuff alone. just wondering if anyone has had any luck good or bad with them.